Roller-bearing.



PATENTED NOV. 19, 1907.

J. JACOB.' ROLLER BEARING.

nrmoulon FILED ma. 11, mov.

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UNITED srnrns PATENT OFFICE.

i JOHN JACOB, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF 'IO EDWIN SWOODS, OF

, CHICAGO, ILLINOIS.

ROLLER-BEARING.

Specification of Letters Patent.

Patented Nov. 19,1907.

To al?1 whom 'it may concern: l

' Be ltknown that I, JOHN JACOB, a citizen of the United States, and aresident of Chicago, in the county of Cook and State of Illinpis, haveinvented certain new and useful Improvementsin Roller-Bearings; and I-dovso ' 4 Among vthe object s of t '.hereby kdeclare that the following isa full,

clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which 'form a part of this specification.` I

This invention relates to improvements in rollerbearings for railwaycars and like purposes, `and the invention consists in the I nat- 5 tershereinafterfset forth and more particularly pointed out in the apendedclaims.

y he invention are to simplify and improve the generalconstructioniofthe'bearing and to provide means for confining the rollerin the bearing casing.

In the drawings z-Figure 1 is a longitudinal section of a roller bearingmade in ac Icordance`with my invention. Fig. 2 is la planuview thereof.Fig. 3 is e'. cross-section,

Fig. Li is a hori- Ly improvements are herein shown as applie toamrollcr Sidedgearing for railway cars of that kind wherein the bearingroller is Acontained in a casing which is adapted to be attachedto andto depend from the end of thecar bolster, and through the lower open`side of the roller chamber of which the roller projects for contactwith an upwardly facing caring on the truck.

` As will be obvious, however, my invention may be variously adapted toother types of roller bearings of the.` same general character for thisand analogo s uses.

' A's slliioWii in the'drawinvs, A designates, as a whole, the u permember of the type of bearing referre to, comprising a cast metal ,Casinlformed to provide an elongated roller cham er Ax which o ensdownwardly.

4 B designates a cy indric bearing roller located in the chamber andadapted for rolling contact with a downwardly facing bearing surface atthe to of the chamber and provjecting 1`through t e lower open side ofthe chamber` for contact with a lower bearing l surface, indicated bythe line C. Said casing comprises'a top wall 0 side walls al a1 and endwalls L2 a3. The side walls arc formed to provide on their inner faceshorizontallyv elongated channels or recesses AL which receive thetrunnioiis or end bearings b of the roller B. The bottom walls a* ofsaid channels constitute tracks4 that support the roller B through themedium of said trunnions when the roller is out of engagement withtheupper and lower bearing surfaces. i The said tracks are shown asinclined inwardly and fdownwardly toward the longitudinal center: of thecasing to automatically center the-,roller in the casing when it issupported by the tracks and out of contact with the bearing surfaces, asis common .in this type of bearing. The casing is rovided at itsopposite ends with apcrtured ugs a5 by which it is attached to thebolster or other part which carries the same.

The downwardly facing bearing surface at the top of the roller chambercomprises a downwardly facing surface d of a removable hard metalwear-plate D that is fitted to the top and end walls of the casing inthe sanie general manner as is shown in my cri-pending application filedon 'the 11th day of February, 1907, Serial Number 356,7 79. Saidremovable wear-plate I) comprises a central horizontal portion anddownwardly curved end parts d1 d1 which are fitted against thecompleinentally .formed inner faces of the end walls i2 a of the casing.Said curved end portions of the wear-plate constitute curved stops toarrest the travel of the roller in. both directions in the saine generalmanner as.

shown in niy aforesaid application.

In accordance with my invention the roller is inserted into the rollerchamber through a suitable opening fornied to permit the insertion ofthe'roller and the trunnions; and the wear-plate D is thereafterinserted in the casing between the roller and the top wall of the casingin an'ianner to constitute a locking' device to confine the roller inthe casing, it being necessary to remove the wear-plate in order toremove 'the roller. In 1the construction of iiiyfaforesaid applicationthe roller is inserted through the o en side of the roller chamberthrough wliic i the roller projects for Contact with the lower bearing,the track flanges being notched to permit the trunnions to passtherethrough.

In the present application, the top wall of the casing is formed toprovide a centrally located opening a of sufficient diinensions topermit the roller to be iiisertedginto the casroller is cast.

vtruniiions pass when the roller is inserted into and removed from thecasing'. When the wear-plate is inserted into the casing, after theroller is inplace, said roller is confined in the casing and cannot beremoved until the wear-plate is withdrawn.

The manner of inserting the wear-plate into the casing and locking ittherein is the same as that illustrated in my aforesaid applicatioii.-That is to say, the said wearpla'te is inserted into the casing throughthe lower open side thereof from one end of the casing zitter the rollerhas been located tliereiii. 'llie end wall c? ol the casing opposite tothe end into which the ear-plate 1s inserted is provided with a shoulder(L8 which serves as a stop for the adjacent end of the wearfplate. Alocking device is provided for theotlier end of the wear-plate whennecessary to hold the saine in place. As herein shown, said lockingdevice consists of a rivet or bolt E that extends transversely throughthe side walls of the casi iigjust inside the end wall (fand across theadjacent end face of the wearplate.

The lfiorizontal part of the wear-plate is arranged within the openingofthe top wallet Athecasing and the upper face of said wearplate isilush with the upper face of said top wall. When the bearing i'nemberisfixed in place the said upper face of the wear-plate has contact withthe lower face of the part to which the bearing is attached, therebyconstitutiiig a backing or support for the central part ol thewearplate.

lVhen the Wear-plate is `in place it 4willbe seen that it constitutesmeans located between the top Wall of the casing and the roller forconfining the roller in the casing,and that it is necessary to removethe wear-plate before the roller caribe removed. 'lt will be furthermorenoted that the Wear-plate is contained within and constitutes a part ofthe upper member of the bearing and doesnot project above the upperaceof said upper member. bearing casing, as a whole, being made ofsubstantially less height! over all than in bearings Where the upperbearing surface is formed on a part that constitutes in eHect the topwall of an open/topped casing.

As a further se aratev improvement, thev trunnions of the ro ler areformed by the ends of a lshaft B1 about which the bodyV of the steel, isofthe length required to extend across the roller chamber and engage thetracks thereof, while the main body of the roller is made of cast-metal,properly chilled,

This construction admits of 'the vThe shaft, preferably made 'of .latterWall bein and is cast about s'aidshaft as stated. This constructionpossesses the important advantage that the bearing trunnions may be madeof much smaller. diameter than is practical or safe'to make. them whencast integral with. the roller. struction contributes also to the resultof enabling the heightl over all of the bearing to` be materiallyreduced.' Moreover, vthe end' bearings or trunnions` thus formed'areconsiderably stronger than bearings of likediroller.

I claim as my invention :-v -1.v In a roller bearing, a casiI formed toprovide an elongated roller chaniber'fopeii at .one side, a rollertherein providedv With-trunnioiis and extending through said open .sideot the chamber for contact with a bearing exterior to the' casing, and a.wear-plate removably iitt'ed within the .chamber between the roller andthe wall of the casing opposite tov said opening, said latter wall beingprovided Thisfeature of thel cony' .ameter cast integral with the bodyofvthe with an opening through which .the roller is inserted into thechamber ata time when the wear-plate is removed-from the chamber;v

whereby said wear-plate, when in place, coniines theroller in thechamber.v

2. lna roller bearing, a casing formed tol provide an elongated rollerchamber open at one side, a roller therein provided with .trun-` iiionsand extending through said open side -of the chamber for contact with.a' bearing exterior to-the casing, and a Wear-pIateTeniovably littedwithin the chamber between the roller and thewall o'i the casingopposite to said opening of the casing, said latter Wall f beingprovided with an opening through which the roller is inserted into thechamber at a time when the wear-plate visremovcd from the chamber,whereby said wear-plate,

occupying said latter opening', v l 1n a roller bearing, a casing formedto provide an elongated roller chamber ope-n at oiie.side, a rollertherein provided with trunnions and extending through said open side ofthe chamber for centact with a bearing' vexterior to the casing, rand awear-plate remove-bly 'fitted within the chamber between' the roller andthe lwall of the casing opposite to said opening and curved lat-itsendsl to wards said opening to constitute stops atthe end ci the chamberfor said roller, said through 'which t ve-roller is inserted into 'h echamber at a time when the wear-plat is removed from the chamber,Awherfeliiy"said Wear-plate2 when in place', coiiiinestheroller,

in the chamber.

I i provided with' an s opening 4. In a roller bearing, "a casingformedto provide an elongated roller chamber open at one side, a rollertherein provided with trunvf nions and extending through said open sideof the chamber for Contact with e' bearing the roller and the waliof thecasing opposite to said o eninsy seid letter wellbcinsT )rovided with enopening through which the 'roller is inserted into the chmnberat e timevso when the weer-plete is removed from the chamber, wherebyseid'weer-plete, when in place, confines the roller in the cinnx'iber,sind ineens for removably locking the weer-plate in the casing.

5,." in a.. relier bearing, 'e casing formed to rovide e downwardlyopening, horizontal, elongated rollerl chamber, e roller thereinprojecting through the lower open side thereof end provided et itsends'withtrunnions, tracks on the side wells oi' the casing on whichseid trunnions are adopted to rest und roll, said'roller having verticalmovement relatively to the trucks and o wear-plete removably iittedwithin the chamber between the top well thereof end the relier, seid topwell being provided with 2in opening through which the roller isinserted into and removed from 'the chamber, and the woor-plateconstituting ineens for confining the roller in seid chamber.

`6. In e roller bearing, c coeing formed to provide a. downwardlyopening, horizontal,

.elongated vroller chamber, e roller therein projecting through thelower open side there-- v of and provided et its ends with trnnnions,

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tracks on the eide weils of the casing on which seid trnonions nreadapted rest'end roll, said roller having vertical movement relativelyto the tracks und a weer-plitere movably iitted within the chamberbetween the top wellv thereof and the roller :ind

`turned downwardly et the ends oi" the chember to constitute stops tolimit the travel. of the roller, said top willi being provided withenopening through which the roiler is in sorted and removed :from thechamber, end the weer-plete constituting'ineens for coniining the rollerin sind chamber.

7. In e roller bearing, e easing formed to provide e downwardly opening,horizontal, elongated roller chc-inbe'r, e roller therein 'projectingthrough `the lower open eide thereof sind provided et its ende withtrunnions, treeks on the sidewalls of the casing on which seid'trunnione are adapted to rest end roll, seid roller having vertioelmove ment relatively to' thetrecks, c wem-plete removably 'iitted withinthe chamber' ,between the top well thereof end the roller, and ineensfor removably locking seid wee 1' plete within sind chenibcr, seid topwoll being` rovided with en opening through which t ie relier isinserted into end removed from 'the chamber, and the wear-pintoconstituting menne for confining the roller in said chamber.

8.` in e roller bearing, c, casing formed to provide a downwardlyopening, horizontal, elongated rOllerchemher, e roller thereinprojecting through the lower open side thereof and provided etits endswith trunnions, tracks on the side wallsf the casing on which saidtrnnnions ere adapted to rest and roll, seid roller having verticalInove' ment relatively to the tracks, and e wearplate removably fittedwithin the chamber between-the top wall thereof and the roller andturned downwardly et the ends ci the chamber to constitute stops tolimit the travel oi the rollerfscid tcp well being provided withonopening through which the roller is inserted end removed from thechamber, the central or intermediate ,portion of the wearlate occupyingthe d iening in Sziid top we, l with itsl up er fce ush with the -upperfece of sind We l.

9. In e roller bearing, e. casing 'formed to provide an elongated roilerchamber open etI one side, e roller therein provided with trunnions endextending through seid open side of the chamber for contact with ebearing .exterior to the casing and e weer-plete removably fitted withinthe ehomber between the roller and the wall of the casing opposite. toeeidpening end adopted for insertion into seid chamber vthrough the scidopening,

said letter well being provided with en opening through which the rolleris inserted into the chamber at c, time when the weer-plate is removedfrom the chamber, whereby said weer-plate, when in place,l confines theroller inV the chamber.

l0 in si roller bearing, :i casing formed to provide en elongated rollerchamber o en at its lower side, e roller therein provide( with trunnionsand 'extending through seid lower ope-n side of the cheinber 'forcontectwith o bearing exterior to the casing and a weerplate .removably iittedwithin the chamber betweensaid roller and the top Woll of the casing andcurved et its ends to form end stops for the roller, seid top wall beingprovided with an opening through which the roller is-inserted into thecasing v:it e time when the weer-plate is removed from the' chiunber,whereby said weer-plete when in place confines seid roller in thechamber, the' 'intermediate part of seid wear-plate occupying theopening in scid top well with its upJer 'fece iiush with the upper faceof said we l.

11. In e roller bearing, e casing formed to provide an elongated rollerchamber open et one4 side, ai roller therein provided with trunnions ondextending through Suid open side of the chamber for contact with abearing exterior to the cztsing, and .ft weer plate removably iittcdwithin the chamber ,between the roller und the w ill oi the 4cesingopposite to seid opening, scid letter well being provided with onopening through which thc roller is inserted into the chamber at o timewhen. the Wea-r plate is removed from the chmher, and the casing beingprovided in its side walls vat the sides of said opening which receivesthe roller when inserted into the easing with notches through Wl'iiehthe trunnions' passwhen the roller is inserted into and removed from theCasing, the construction beingr such that the Wea-r plate confines theroller in .the chamber.

12. In n roller bea-ring, a easing 'formed to provide an elongatedroller chamber open at one side, ay roller therein provided withtrunnions and extending through said open side of the chamber forContact with a hearing' exterior to the Casing, and a weer pleiteremovahly 'fitted Within the chamber hie-tween the roller and the Wallof the casing opposite eresie 'said opening, seid easing being providedwith an opening through insertedjn the chamber Wear plate is removed andthe'wear 'xy invent-ion. i aiix my which the roller is at a 'time whenthe from the chamber, plat-e being arranged when in ieee to Confine the,roier in the chamber,

l and lookin(y inea-ns env-afinor the'ends of the b b c D ennary A. I).1907. l

JOHN JACOB.

d ay of' i Witnesses WILLIAM L. HALL, -GEoRGE R. WILKINS.

signature -in the

